81282460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25243}}^1$

素因数の和:25282

約数の個数: 48

約数和(自身を含む): 203567616

約数和(自身を除く): 122285156

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 35, 46, 70, 92, 115, 140, 161, 230, 322, 460, 644, 805, 1610, 3220, 25243, 50486, 100972, 126215, 176701, 252430, 353402, 504860, 580589, 706804, 883505, 1161178, 1767010, 2322356, 2902945, 3534020, 4064123, 5805890, 8128246, 11611780, 16256492, 20320615, 40641230, 81282460]

約数ペア:

[(1, 81282460), (2, 40641230), (4, 20320615), (5, 16256492), (7, 11611780), (10, 8128246), (14, 5805890), (20, 4064123), (23, 3534020), (28, 2902945), (35, 2322356), (46, 1767010), (70, 1161178), (92, 883505), (115, 706804), (140, 580589), (161, 504860), (230, 353402), (322, 252430), (460, 176701), (644, 126215), (805, 100972), (1610, 50486), (3220, 25243)]